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Zinc induces cell cycle arrest and apoptosis by upregulation of WIG-1 in esophageal squamous cancer cell line EC109

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Tumor Biology

Abstract

Zinc deficiency was implicated in the etiologies of human esophageal squamous cell carcinoma (ESCC). Wild-type p53-induced gene 1 (WIG-1), a kind of zinc finger protein, was cloned from the human 3q26.3 region and encoded a putative polypeptide of 289 amino acids. Our previous studies have demonstrated that the expression of WIG-1 was downregulated in ESCC tissues. Herein, we investigated the effect of zinc on cell proliferation, apoptosis, as well as expression of WIG-1 in EC109 cells. Meanwhile, an RNAi vector of WIG-1 was transfected into EC109 cells and the effect of zinc on WIG-1 expression was investigated. We found that zinc could suppress cell proliferation and induce G0/G1 cell cycle arrest and apoptosis of EC109, and this efficacy might result from the expression altering of several apoptosis-related genes, such as Bax, p21 WAF, and cyclin D1. In particular, upregulation of WIG-1 was observed after zinc supplementation, indicating that WIG-1 might be involved in the zinc-induced cell cycle arrest and apoptosis of EC109 cells by regulating the expression of Bax, p21 WAF, and cyclin D1.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (No. 30801137 and 81071976).

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Authors and Affiliations

  1. Department of Thoracic Surgery, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, 400042, People’s Republic of China

    Wei Guo, Ying-Bo Zou, Yao-Guang Jiang, Ru-Wen Wang, Yun-Ping Zhao & Zheng Ma

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  1. Wei Guo
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  2. Ying-Bo Zou
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  3. Yao-Guang Jiang
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  4. Ru-Wen Wang
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  5. Yun-Ping Zhao
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Corresponding author

Correspondence to Yao-Guang Jiang.

Additional information

Wei Guo and Ying-Bo Zou contributed equally to this study.

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Guo, W., Zou, YB., Jiang, YG. et al. Zinc induces cell cycle arrest and apoptosis by upregulation of WIG-1 in esophageal squamous cancer cell line EC109. Tumor Biol. 32, 801–808 (2011). https://doi.org/10.1007/s13277-011-0182-5

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  • DOI: https://doi.org/10.1007/s13277-011-0182-5

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